/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: HP
 * Date: 2023 -05 -14
 * Time: 17:55
 */
class BiJiBen extends HuoJiaApp {
    public void shangjia() {
        System.out.print("笔记本上架");
    }
    public void cunfang() {
        System.out.print("笔记本存放");
    }
    public void quzou() {
        System.out.print("笔记本取走");
    }
}